{% extends 'base.html' %}
{% block style %}
    {{ super() }}
    <style>
        #sample{
            color:red
        }
    </style>
{% endblock %}

{% block content %}
    <div id="sample">
       <h3>Sample</h3>
    </div>
    <img src="{{url_for('static',filename='logo.svg')}}">
{% endblock %}